SUGIYAMA Yuki,СУГИЯМА Юки,SATO Tomoko,САТО Томоко,SHODZI Ken,ШОДЗИ Кен
申请号：
RU2014129311
公开号：
RU0002607088C1
申请日:
2012.10.17
申请国别(地区):
RU
年份:
2017
代理人:
摘要：
FIELD: chemistry.SUBSTANCE: described is a cosmetic composition in form of a Pickering type "oil-in-water" emulsion for skin or hair, containing a "core-shell" type microgel emulsifier, oil phase ingredients and aqueous phase ingredients, where "core-shell" type microgel emulsifier consists of a copolymer, typically obtained by polymerising polyethylene oxide macromonomers of following formula (1), hydrophobic monomers of following formula (2) and cross-linking monomers of following formula (3) in following conditions (A) and (B): (A) molar ratio of initial molar amount of said polyethylene oxide to initial molar amount of hydrophobic monomers is 1:10–1:250, (B) initial amount of said cross-linking monomers is 0.1–1.5 wt% with respect to initial amount of said hydrophobic monomers (1), where R1 denotes alkyl having 1–3 carbon atoms, and n is an integer from 8 to 200, X denotes H or CH3 (2), where R2 denotes alkyl having 1–3 carbon atoms, and R3 denotes alkyl having 1–12 carbon atoms (3), where R4 and R5 each independently denotes alkyl having 1–3 carbon atoms, and m is a number from 0 to 2, where amount of "core-shell" type microgel emulsifier is 0.01–10 wt% with respect to total amount of composition in form of Pickering emulsion. Also described is a method of producing said cosmetic composition in form of a Pickering type "oil-in-water" emulsion, which includes: mixing and dispersing "core-shell" type microgel emulsifier in water or aqueous phase ingredients, adding oil phase ingredients and other ingredients, and emulsifying mixture by mixing and applying a shear force. Invention also describes use of said "core-shell" type microgel emulsifier for producing a cosmetic composition in form of Pickering type "oil-in-water" emulsion for skin or hair.EFFECT: obtaining a composition in form of emulsion with improved emulsification stability, with low skin irritation and low sensation scratchiness and powderiness.5 cl, 1 dwg, 14 tbl, 20 exОписана косметическая композ
